It was really late at night, I think 10 or 11 pm and I had to take a train back home and was in the grab & go supermarket at the trainstation to get a drink before my train left. Because it was so late, there was just this one girl manning the registers and the only one in sight, too. While she was helping customers, there was also this drunk homeless dude bothering her. Nothing against homeless people, but this guy was just harassing her, clearly drunk, asking her for money and miming stealing things or whatever, and she had to leave her register a couple of times to yank items out of his hand. He was just being a pain in the ass for this poor girl who clearly was busy enough as it was.
I bought my drink and left, feeling kind of sorry for her, and after 8 or so there's a general ticket check performed by some security people, so when showing them my public transit card I said 'Oh, yeah, by the way... There's this homeless guy in the supermarket and he's botheri-' I didn't even get to FINISH the sentence I was making to a nice, concerned looking security guy, before one of his colleagues jumped in front of me and immediately interrupted me and spat 'just leave that guy alone, jesus, he's just an old man' in the most hateful tone and rolling his eyes. I was taken aback, of course, because I don't really expect the security people to reprimand me for telling them about stuff, so I try to start explaining that there was just one girl in the store and that the guy was bothering her, but again, before I get to finish what I was saying, the guy interrupts by sighing theatrically, rolling his eyes and looking like I'm personally responsible for everything that's ever gone wrong in his life.
I was just vexed. The guy who I'd originally started talking to apparently also thought his coworker's behaviour wasn't very ok and started saying 'no, no it's very good that you're telling us this!' but before he could even finish his sentence, the colleague starts yelling at him and they basically get into a verbal fight right in front of me, so I just walked off to go catch my train. Seriously, WTF? I remember even feeling threathened by the reaction of the coworker, that's how agressive he acted. I probably should have filed a complaint or something, but I wasn't really sure what their positions were exactly and never got any names.